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Feb 17, 2011


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Posted: Feb 17, 2011 7:42pm
Feb 7, 2011

Sunday, 6pm eastern time.
Neil DeGrasse Tyson hosts. The subjects range from astrophysics to exobiology.
Recent episodes are available too...in case you didn't make it to the live show.

http://startalkradio.net/

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Posted: Feb 7, 2011 6:38am
Feb 4, 2011
Zeta Oph: Runaway Star
Credit: NASA, JPL-Caltech, WISE Team

Explanation: Like a ship plowing through cosmic seas, runaway star Zeta Ophiuchi produces the arcing interstellar bow wave or bow shock seen in this stunning infrared portrait from the WISE spacecraft. In the false-color view, bluish Zeta Oph, a star about 20 times more massive than the Sun, lies near the center of the frame, moving toward the top at 24 kilometers per second. Its strong stellar wind precedes it, compressing and heating the dusty interstellar material and shaping the curved shock front. Around it are clouds of relatively undisturbed material. What set this star in motion? Zeta Oph was likely once a member of a binary star system, its companion star was more massive and hence shorter lived. When the companion exploded as a supernova catastrophically losing mass, Zeta Oph was flung out of the system. About 460 light-years away, Zeta Oph is 65,000 times more luminous than the Sun and would be one of the brighter stars in the sky if it weren't surrounded by obscuring dust. The WISE image spans about 1.5 degrees or 12 light-years at the estimated distance of Zeta Ophiuchi.

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Posted: Feb 4, 2011 4:50pm

 

 
 
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Phil R.
, 2, 2 children
Marlboro, NY, USA
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Message to the President, and to the Congress:It's very simple. We can aim for a UNIVERSAL Standard of $15 an hour Minimum Wage for ALL - that would be {frugally} a living wage these days. One should not have to be employed, and on government assistan...
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26
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This is my Message that I send every week or so, to the President, my Representative, and my two Senators. {And in this instance, to the Vice President also.} The Majority of the people of this country, approve that the President {and Vice Presiden...
Jan
18
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I feel Care2 members should KNOW about the "work from home" ads, RECRUITING "MULES" TO CARRY OUT ILLEGAL ACTIVITIES. Just like the Drug Cartels do... A person who was recruited unwittingly by one of these ads, was given in a seattleweekly.com article ...
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Every week or every other week, I send a Message to the President and to my Representative and Senators. This is the text of my latest: I have just sent the following message to President Obama; and I believe all Congresspersons need to hear it also...
Jan
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This is a more-or-less weekly message I send to the President and to my Legislators. The following is the version of it I sent to Governor Inslee. This is to notify you of a message I have just sent to the President and members of Congress. Since th...
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This is a very simple video report One man with a radiation detectorhttp://www.youtub e.com/watch?v=LcQLxT49ZP0 7 mins... [This link was sent to me by a friend...]
Jan
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17
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Dec
2
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This is the Content of my weekly e-mail to the President and my Members of Congress: I have just sent the following message to President Obama, and I think the Congress should heed this also!Mr. President: Your Administration is very much to be comm...